I've been hesitant to register, and to decide whether or not to join the mass arrival in our VariEze. We have owned the aircraft a little more than a year, and I still have less than 40 hours in the type. It is a very nice and reliable airplane, and we flew it from Denver to Phoenix and back at Christmas. I also have less than 150 hours total in my logbook. I have flown in formation with other EZ's on five (5) occasions, but I am not entirely comfortable yet with what you have planned.
The advantages that I see are of course being part of an historic event that won't happen again, and the implication that aircraft in the Glass Overcast arrival may not have to pull off the runway and taxi in the grass.
If I am told to run my VariEze off into the grass, it will probably be damaged.